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Aeview of the hydrograDha and the above table shows that this year's discharge • <br />mac about average, being ranked ae the eighth highest is thirteen years. Review <br />of the TDS Dlot indicates as iacreeeiag tread. <br />- Surface water Site SW-S2-12 (63812). This site moaitore Hond Creek at its <br />confluence with Fiah Creek. Zt is monitored May through September oa a monthly <br />basis. This year, flow was Drasent at this site only during the May visit, <br />although NPDES 008 upstream was flowing continuously. This reduction in flow is <br />due to stream channel infiltration and evapotraneyiratioa. The TD3 plot <br />indicates a slightly increasing tread. <br />- Surface water Site SW-S2-11 (SSP11). This site moaitore Fiah Creek upstream <br />of its confluence of Cow Camp Creak. It ie required to be monitored May through <br />September on a monthly basis, but only i£ either Sites 10 or 12 are flowing. <br />However, field paremetere and flow estimates may sometimes be provided <br />voluntarily when not required. This Bite ie upstream of Seneca II Miae <br />discharges. <br /> <br />- Suz£ece Water Site 9W-32-13 (99F13). This site moaitore Fiah Creek downstream <br />of its confluences with Cow Camp Creek and Boad Creek. St ie monitored at the <br />same frequency ae Site 11. The increase in TDS values, from Site 11 to Site 13, <br />was from 670 to 490 mg/1 (4~c). <br />Oa Page 7-247 of the Seneca II Mina probable Hydrologic Consequences (PHC), <br />predictions were made for the TDS iacreasea to be observed on Fieh Creek during <br />the months of June sad July due to discharges from the Seneca II Mine. Ia June, <br />as increase £rom 421 to 497 mg/1 (18+x) is predicted. Ia July, as increase £rom <br />533 to 607 mq/1 (13AC) ie predicted. However, neither lower load Creek nor lower <br />Cow Camp Creek was flawing in Juae or July this year. Ae stated is the previous <br />paragraph, only a 496 increase is TDS was noted between the two sites is May. it <br />appears that the Seneca II Miae hoe little i~act oa Fieh Creek. Water <br />discharged From the mice ie lost to stock Donde, eveDotransDiration, and the <br />alluvium as it Flows through Twentymile Park. Dissolved solids from mine <br />discharges are diluted during the saowmelt suno£f in March sad April (prior to <br />the irrigation season) by high stream flows with relatively low TDS • <br />14 <br />